Hydrogenation of Carbon Dioxide to Methane by Ruthenium Nanoparticles in Ionic Liquid

Melo, Catarina I.; Szczepańska, Anna; Bogel‐Łukasik, Ewa; Ponte, Manuel Nunes da; Branco, Luı́s C.

doi:10.1002/cssc.201600203

Cited by 43 publications

(26 citation statements)

References 28 publications

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“…As a catalytic material, Ru has been extensively used to accelerate a range of reactions, including hydrogenation, CO oxidation, and ammonia decomposition . As mentioned previously, the phase diagram of bulk Ru suggests that its equilibrium phase under ambient conditions is hcp .…”

Section: Extension To Other Metals and Alloysmentioning

confidence: 93%

Shape‐Controlled Synthesis of Colloidal Metal Nanocrystals by Replicating the Surface Atomic Structure on the Seed

et al. 2018

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Controlling the surface structure of metal nanocrystals while maximizing the utilization efficiency of the atoms is a subject of great importance. An emerging strategy that has captured the attention of many research groups involves the conformal deposition of one metal as an ultrathin shell (typically 1-6 atomic layers) onto the surface of a seed made of another metal and covered by a set of well-defined facets. This approach forces the deposited metal to faithfully replicate the surface atomic structure of the seed while at the same time serving to minimize the usage of the deposited metal. Here, the recent progress in this area is discussed and analyzed by focusing on the synthetic and mechanistic requisites necessary for achieving surface atomic replication of precious metals. Other related methods are discussed, including the one-pot synthesis, electrochemical deposition, and skin-layer formation through thermal annealing. To close, some of the synergies that arise when the thickness of the deposited shell is decreased controllably down to a few atomic layers are highlighted, along with how the control of thickness can be used to uncover the optimal physicochemical properties necessary for boosting the performance toward a range of catalytic reactions.

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Section: Extension To Other Metals and Alloysmentioning

confidence: 93%

Shape‐Controlled Synthesis of Colloidal Metal Nanocrystals by Replicating the Surface Atomic Structure on the Seed

et al. 2018

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“…As a last example, Branco and coworkers described the hydrogenation of CO2 into methane using in situ formed IL-supported Ru NPs (Figure 26). 283 The nanocatalyst was prepared in situ Reprinted with permission from ref 283 . Copyright 2016 Wiley.…”

Section: Transformation Of Co2 Into Co Ch4 or C2+ Hydrocarbonsmentioning

confidence: 99%

Catalysis with Colloidal Ruthenium Nanoparticles

2020

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This review provides a synthetic overview of the recent research advancements addressing the topic of catalysis with colloidal ruthenium metal nanoparticles through the last five years. The aim is to enlighten the interest of ruthenium metal at the nanoscale for a selection of catalytic reactions performed in solution condition. The recent progress in nanochemistry allowed providing well-controlled ruthenium nanoparticles which served as models and allowed study of how their characteristics influence their catalytic properties. Although this parameter is not enough often taken into consideration the surface chemistry of ruthenium nanoparticles starts to be better understood. This offers thus a strong basis to better apprehend catalytic processes on the metal surface and also explore how these can be affected by the stabilizing molecules as well as the ruthenium crystallographic structure. Ruthenium nanoparticles have been reported for their application as catalysts in solution for diverse reactions. The main ones are reduction, oxidation, Fischer–Tropsch, C–H activation, CO2 transformation, and hydrogen production through amine borane dehydrogenation or water-splitting reactions, which will be reviewed here. Results obtained showed that ruthenium nanoparticles can be highly performant in these reactions, but efforts are still required in order to be able to rationalize the results. Beside their catalytic performance, ruthenium nanocatalysts are very good models in order to investigate key parameters for a better controlled nanocatalysis. This is a challenging but fundamental task in order to develop more efficient catalytic systems, namely more active and more selective catalysts able to work in mild conditions.

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“…Design of catalysts that can work effectively at lower temperature has received considerable attention. 29 Although many efforts have been made, the progress was restricted to several noble metal catalysts, especially at a temperature below 200 C. [30][31][32][33][34][35][36] Obviously, low temperature methanation of CO 2 over cheap metal catalysts is highly desirable. Herein we show that the amorphous Zrdoped Co-B-O catalyst can effectively accelerate the CO 2 methanation at above 140 C. Excellent activity was obtained at 180 C, which is comparable to or even higher than those of some noble metal catalysts (Table S1 †).…”

Section: Introductionmentioning

confidence: 99%

Low temperature methanation of CO₂ over an amorphous cobalt-based catalyst

Qian

et al. 2021

Chem. Sci.

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Hydrogenation of Carbon Dioxide to Methane by Ruthenium Nanoparticles in Ionic Liquid

Cited by 43 publications

References 28 publications

Shape‐Controlled Synthesis of Colloidal Metal Nanocrystals by Replicating the Surface Atomic Structure on the Seed

Shape‐Controlled Synthesis of Colloidal Metal Nanocrystals by Replicating the Surface Atomic Structure on the Seed

Catalysis with Colloidal Ruthenium Nanoparticles

Low temperature methanation of CO₂ over an amorphous cobalt-based catalyst

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Hydrogenation of Carbon Dioxide to Methane by Ruthenium Nanoparticles in Ionic Liquid

Cited by 43 publications

References 28 publications

Shape‐Controlled Synthesis of Colloidal Metal Nanocrystals by Replicating the Surface Atomic Structure on the Seed

Shape‐Controlled Synthesis of Colloidal Metal Nanocrystals by Replicating the Surface Atomic Structure on the Seed

Catalysis with Colloidal Ruthenium Nanoparticles

Low temperature methanation of CO2 over an amorphous cobalt-based catalyst

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Product

Resources

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Low temperature methanation of CO₂ over an amorphous cobalt-based catalyst